Rename current directory file names with exif creation date

rename-with-date.sh

#!/bin/sh

for file in *.*
do
  if [[ $file != `basename $0` && $file != ".DS_Store" ]]; then
    extension=`echo "$file" | cut -d'.' -f2`
    mv -n "$file" "$(exiftool -d "%Y%m%d_%H%M%S" -CreateDate "$file" | awk -v ext=$extension '{print $4 "." ext}')"
  fi
done